Sheet-metal-worker&#39;s tool.



% INI/E/VTOI? Y BY W! Ah ATTORNEY WITNESS M. MARLENS.

SHEET METAL WORKER'S TOOL.

APPLICATlON FILED MAR. 3|. l9l6.

1,200,383. Patented Oct. 3,1916.

2 SHEETS-SHEET 2.

I wmvess IIVVENTOR A TTOR/VE Y MAX IVI ARLEN-S, OF NEW YORK, N. Y.

SHEET-METAL-WORKERS TOOL.

To all whom it may concern.

Be it known that 1, MAX MARLENS, a citizen of the United States, and a resident of the city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Sheet- Metal-WVorkers Tools, of which the following is a specification.

The present invention relates to a tool especially adapted for the use of sheet metal workers.

It pertains more particularly to a tool of the anvil type of a size suitable to be placed into the portable tool chest orsatchel of a workman.

The main object of the invention is to provide a combination tool of the type mentioned, which is suitable, first, for turning the edges of metal sheets to form seaming hooks, second, for hammering down the interlocked edges of the seams of sheet metal bodies, and, third, as an anvil in riveting together the overlapping edges of metal sheets, etc.

Another object of the invention is to so shape the stock of the tool that it can be conveniently grasped by the hand of the user, preventing at the same time the full force of the hammer blows directed against the said tool from being transmitted to the hand holding the same.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter fully described, pointed out in the appended claim and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claim without departing from the spirit or sacrificing any of the advantages of the in vention.

One of the many possible embodiments of the invention is illustrated in the accom panying drawings, in which Figure 1 is a front elevation of a tool constructed in accordance with the present invention; Fig. 2 is a top elevation thereof; Fig. 3 is a section taken on line 33 of Fig.

1; and Figs. 4 to 8, inclusive, are illustra-.

tions of the several uses to which the tool may be applied.

Referring now more particularly to Figs.

, Specification of Letters Patent.

Application filed March 31, 1916. Serial No. 88,036.

Patented Oct. a, rare.

1 to 3, inclusive, the tool comprises a head 10, that is polygonal, in the case illustrated substantially quadrangular, in configurat1on, its upper face, 11, which is somewhat rounded, being bounded by two straight edges 12 and 13, and by two curved edges 14: and 15. The radius of the edge 14 is considerably greater than that of the edge 15.

The face 16 of the head, of which the straight edge 12 forms one of the boundary lines, is inclined at an acute angle to the face 11 thereof for a purpose hereinafter to be described. The head'of the tool is, preferably, made integral with a stock 17 which forms the handle thereof. This stock comprises a cylindrical portion 18, which is joined by a conical section 19 with the head 10. The base 20 of the conical portion is disposed in the plane of the underface 10 of the head 10. Upon the lower end of the cylindrical portion 18 is also formed a conical section, denoted by the numeral 21, its face 22 being rounded foria purpose here inafter to be described.

The tool is, preferably, made of steel and shaped by drop forging, although it may be obtained by other processes of manufacture just as well.

The tool may be put to various uses. For instance, as illustrated in Fig. 6, it may be used for turning the edges of a sheet 23 to form seaming hooks 24. When used for this purpose the work, or in other words the sheet 23, is placed upon the head 10 so that its edge 25 projects beyond the straight boundary line 12 of the head 10. The projecting portion of the work is then hammered down onto the inclined face 16 of the head. The workmans helper holds the tool with one of his hands, while the workman performs the hammering operation.

Another use of the tool is illustrated in Fig. 4 of the drawings, wherein the joining of the head 26 with the body 27 of a sheet metal receptacle is illustrated, the joining being effected by double seaming. The body 27 is cylindrical, and the seam 28 is hammered onto the outer face thereof. The tool performs in this case the function of an anvil, it being placed in a position so that its head 10 rests upon the inner face of the.

head 26 of the sheet metal receptacle and one of its curved edges 14. or 15, depending upon the curvature of the cylindricalwall of the receptacle, abuts against the inner face of the body 27. In this position the tool is held by the helper while the work ing work.

man hammers the seam onto the outer face of the body "27. When forming a double scam in this manner, the head 26 of the receptacle so obtained bulges out, as clearly shown at 29. This bulging portion is then hammered flat, the 'tool being used as illus trated in Fig. 5 of the drawings. The tool is held so that the double seam rests upon the head 10, the straight edge 13 of the tool head abutting against the outer face of the body 27.

In Fig. 7 a further use of the tool is illustrated, wherein it serves as an anvil in rivet- If straight metal sheets are to be riveted together, as in the case illustrated in Fig. 7, the work, to wit: the .two sheets 30 and 31 are made to rest upon the upper face 11 of the tool head, the heads 32 of the rivets 33 being formed by hammering operation. The face 11 of the tool head is curved to prevent the working face of the hammer head from coming into contact throughout its entire area with the tool head 10 in case a blow directed against the rivet misses the same. If the work comprises curved sheets, as indicated in Fig. 8 of the drawings, the tool is reversed and the curved face 22 of the conical section 21 of the tool held against the work. Otherwise the operation is the same.

The sections 19 and 21 of the tool stock are made conical so as to prevent the full force of a hammer blow directed against the tool from being transmitted to the hand yield. The same is true, of course, if the tool is used for the riveting operation illustrated in Fig. 8. It is to be observed that, if the shank 18 were cylindrical throughout its length, the underfac'e 10 of the tool head would come into contact during the hammering operation with the hand holding the tool. In this manner, of course, the full force of a blow directed against the tool would be delivered to the hand.

What I claim is p A metal workers tool comprising a head having a plane underface, and a shank including a conical portion, the base of which is joined with said underface, the base of said conical portion being disposed substantially centrally on said face and leaving adjacent to said base an abutment forming part of said face.

Signed at New York, in the county of New York and State of New York, this 27th day of March, A. D. 1916.

MAX MARLENS.

Copies of this patent may be obtained "for five cents each; by addressing the Co'mmissibn'er of Patents. Washington, D. G. 

